Where does “-प्-” come from?

-प्- (Sanskrit) comes from Sanskrit -इत, from Proto-Indo-Iranian -tás, from Proto-Indo-European -tós — Creates verbal adjectives from verb stems.

Ancestry of “-प्-”, step by step

StepLanguageWordMeaning
1Sanskrit-इतforms adjectives from nouns: -ed, having, furnished with
2Proto-Indo-Iranian-tásCreates verbal adjectives from verb stems
3Proto-Indo-European-tósCreates verbal adjectives from verb stems

Words derived from “-प्-”

Every word from Proto-Indo-European -tós →Every word from Sanskrit -इत →Every word from Proto-Indo-Iranian -tás →